Preoperative Presence of Gastric Content in Non-fasting Patients - an Ultrasound Study

Preoperative Presence of Gastric Content in Non-fasting Patients - an Ultrasound Study

Using bedside ultrasound, the investigators will examine gastric content in non-fasting patients assigned to rapid sequence intubation (RSI). The procedure will be done immediately before intubation. The percentage of non-fasting patients who actually have gastric content will be determined.

Identifying gastric content is critical because presence increases the risk of pulmonary aspiration during intubation.

Quantitative gastric content will be registered by measuring the cross section area of antrum using bedside ultrasound. The area and the patients age will be applied to estimate gastric volume.

Inclusion Criteria:

• adults scheduled for surgery
• Adults over 18 years old that are assigned to general anesthesia with rapid sequence intubation (RSI)

Exclusion Criteria:

• Body mass index over 40
• Pregnant women
• Patients earlier underwent gastric surgery
• Critically ill patients where spending time on ultrasound would cause a major disadvantage for the patients